CN219013140U

CN219013140U - Antitheft screw fastener

Info

Publication number: CN219013140U
Application number: CN202222894962.9U
Authority: CN
Inventors: 吴小亮
Original assignee: Zili Fastening Technology Huzhou Co ltd
Current assignee: Zili Fastening Technology Huzhou Co ltd
Priority date: 2022-11-01
Filing date: 2022-11-01
Publication date: 2023-05-12
Anticipated expiration: 2032-11-01

Abstract

The utility model discloses an anti-theft screw fastener which comprises a bolt component and a fastening component detachably arranged at the top of the bolt component, wherein the bolt component comprises a screw rod and a screw head constructed at the top end of the screw rod, an inner hexagonal screw hole is formed in the middle of the top end of the screw head, engagement grooves adapting to the fastening component are formed in two sides in the inner hexagonal screw hole, the fastening component comprises an anti-theft cover, a bearing seat inserted and arranged in the inner hexagonal screw hole is formed in the middle of the inner top end of the anti-theft cover, arc-shaped plates are respectively formed in two sides of the bottom end of the bearing seat, engagement teeth meshed and arranged in the engagement grooves are respectively formed in two sides of the arc-shaped plates, steel balls abutted between the two arc-shaped plates are movably arranged in the inner bottom of the bearing seat, and an elastic component abutted to the steel balls is fixedly arranged at the inner top of the bearing seat. The anti-theft screw fastener has the advantages of simple structure, high fixing strength, good anti-theft performance, reusability and lower cost in use.

Description

Antitheft screw fastener

Technical Field

The utility model belongs to the technical field of screws, and particularly relates to an anti-theft screw fastener.

Background

The screw is a common fixed part, is common in machinery, electric appliances, buildings and the like, is generally made of metal or plastic, is cylindrical, is provided with concave-convex grooves on the surface, is called threads, and has the main function of being used for connecting two objects or fixing the position of one object, and is also matched with a nut for use, so that the two objects are fixed more conveniently and rapidly.

The appearance design and the materials of the common screw are mature, but various screws with special functions, such as the anti-theft function, are appeared in recent years due to the demands of production and life, but the popularization of the market is plagued due to the complex process and the weak anti-theft performance.

The fastener for the anti-theft screw in the prior art is of a disposable structure, namely, the fastener cannot be reused after being taken down, and has the anti-theft effect, but the cost is high when the fastener is used due to the fact that the fastener is combined with the conditions of daily maintenance, damage maintenance and the like.

Disclosure of Invention

The utility model aims to provide an anti-theft screw fastener which solves the problems in the prior art.

In order to achieve the above purpose, the present utility model provides the following technical solutions:

an antitheft screw fastener comprises a bolt assembly and a fastening assembly detachably arranged on the top of the bolt assembly;

the bolt component comprises a screw rod and a screw head constructed at the top end of the screw rod, an inner hexagonal screw hole is formed in the middle of the top end of the screw head, and engagement grooves for adapting to the fastening component are formed in two sides in the inner hexagonal screw hole;

the fastening assembly comprises an anti-theft cover, a bearing seat which is inserted and arranged in an inner hexagonal screw hole is arranged at the middle of the inner top end of the anti-theft cover, arc-shaped plates are respectively arranged at the two sides of the bottom end of the bearing seat, engagement teeth which are engaged and installed in the engagement groove are respectively arranged at the two sides of the arc-shaped plates, a steel ball which is abutted between the two arc-shaped plates is movably installed at the bottom in the bearing seat, and an elastic assembly which is abutted to the steel ball is fixedly installed at the top in the bearing seat.

Further, the elastic component comprises an annular seat, and the annular seat is sleeved at the top of the steel ball.

Further, the top end of the annular seat is fixedly provided with a spring, and the spring is fixedly connected to the inner top end of the bearing seat.

Further, the anti-theft cover is sleeved on the screw head, and a positioning groove is formed in the middle of the top end of the anti-theft cover.

Compared with the prior art, the utility model has the following beneficial effects:

the anti-theft cover with the bearing seat internally is arranged on the screw head and is inserted into the inner hexagonal screw hole, so that the engaging teeth formed on the two arc plates are respectively propped into the two engaging grooves to lock the anti-theft cover, the shielding of the inner hexagonal screw hole is realized, if the anti-theft cover is required to be disassembled, the steel ball is attracted to one side of the screw head through the powerful magnet, so that the elastic component is pushed to deform, the two arc plates are reset, the two engaging teeth are separated from the two engaging grooves respectively, the shielding of the inner hexagonal screw hole is eliminated, the disassembly is convenient, and the anti-theft cover cannot be taken down without the powerful magnet reaching the specification, and the anti-theft cover can be repeatedly used and has lower cost when in use;

due to the arrangement, when the annular seat pushes the steel ball provided with the spring to move downwards, the two arc plates can be pushed to deform, so that the two engagement teeth are respectively inserted into the two engagement grooves, the pushing of the arc plates can be kept for a long time, the fixing effect is ensured, and the anti-theft performance is further improved.

Drawings

FIG. 1 is a schematic diagram of the structure of the present utility model;

FIG. 2 is a schematic diagram of the present utility model;

FIG. 3 is a schematic view showing the internal structure of the fastening assembly of the present utility model in a magnetized state.

In the figure: 1. a bolt assembly; 101. a screw; 102. a screw head; 103. an inner hexagonal screw hole; 104. a snap groove; 2. a fastening assembly; 201. an anti-theft cover; 202. a bearing seat; 203. an arc-shaped plate; 204. a bite tooth; 205. a steel ball; 206. an annular seat; 207. a spring; 208. and a positioning groove.

Detailed Description

The utility model is further described in connection with the following detailed description, in order to make the technical means, the creation characteristics, the achievement of the purpose and the effect of the utility model easy to understand.

As shown in fig. 1, 2 and 3, an anti-theft screw fastener comprises a bolt component 1 and a fastening component 2 detachably mounted on the top of the bolt component 1, wherein the bolt component 1 comprises a screw rod 101 and a screw head 102 configured on the top end of the screw rod 101, an inner hexagonal screw hole 103 is centrally formed on the top end of the screw head 102, two sides in the inner hexagonal screw hole 103 are provided with a meshing groove 104 for adapting to the fastening component 2, the fastening component 2 comprises an anti-theft cover 201, a bearing seat 202 which is inserted and arranged in the inner hexagonal screw hole 103 is centrally configured on the top end in the anti-theft cover 201, arc plates 203 are respectively configured on two sides of the bottom end of the bearing seat 202, meshing teeth 204 which are engaged and mounted in the meshing groove 104 are respectively configured on two sides of the arc plates 203, a steel ball 205 which is abutted between the arc plates 203 is movably mounted in the bottom of the bearing seat 202, the elastic component abutting against the steel ball 205 is fixedly arranged at the inner top of the bearing seat 202, the anti-theft cover 201 with the bearing seat 202 internally constructed is arranged on the screw head 102, and the bearing seat 202 is inserted into the inner hexagonal screw holes 103, so that the engaging teeth 204 constructed on the two arc plates 203 respectively abut into the two engaging grooves 104 to lock the anti-theft cover 201, the shielding of the inner hexagonal screw holes 103 is completed, if the anti-theft cover is required to be disassembled, the steel ball 205 can be attracted to one side of the screw head 102 through a powerful magnet, the elastic component is pushed to deform, the two arc plates 203 are reset, the two engaging teeth 204 are separated from the two engaging grooves 104, the shielding of the inner hexagonal screw holes 103 is removed, the disassembly is convenient, and the anti-theft cover 201 can not be removed without the powerful magnet reaching the specification because the anti-theft cover 201 shields the inner structure, and can be reused, and the cost is lower when in use.

As shown in fig. 2 and fig. 3, the elastic component includes an annular seat 206, the annular seat 206 is sleeved on the top of the steel ball 205, a spring 207 is fixedly installed at the top end of the annular seat 206, the spring 207 is fixedly connected to the top end in the bearing seat 202, the anti-theft cover 201 is sleeved on the screw head 102, a positioning slot 208 is centrally formed in the top end of the anti-theft cover 201, when the annular seat 206 pushes the steel ball 205 provided with the spring 207 to move downwards, the two arc plates 203 can be pushed to deform, so that the two engagement teeth 204 are respectively inserted into the two engagement slots 104, the pushing and squeezing of the arc plates 203 can be maintained for a long time, thereby guaranteeing the fixing effect, and further improving the anti-theft performance.

Working principle: this theftproof screw fastener, during the use, through the screw rod 101 with install the spiral shell head 102 through interior hexagonal screw 103 screw in appointed position, thereby accomplish the fixed to interior hexagonal screw 103, after the completion of fixing, can install theftproof lid 201 on spiral shell head 102, thereby make in the socket 202 inserts interior hexagonal screw 103, during the time of inserting, can make two arc plates 203 that construct with interlock tooth 204 take place deformation when socket 202 inserts interior hexagonal screw 103, and accomplish the reset under the help of spring 207 when two interlock tooth 204 block into respectively in two interlock grooves 104, thereby accessible theftproof lid 201 shelters from interior hexagonal screw 103, the effect of theftproof has been played, and during the dismantlement, powerful magnet butt in constant head tank 208, thereby attract steel ball 205, make it move towards one side that keeps away from interior hexagonal screw 103, and squeeze spring 207, so that two arc plates 203 reset, thereby result in two interlock tooth 204 to shelter from in two interlock grooves 104 respectively, so as to shelter from interior hexagonal screw 103, and dismantle the lid, and the convenient for the dismantlement of two interlock tooth 204, and the inside can not be reached through the repeated performance of the convenient to use of the structure, the cost is lower than can be convenient, and the theft-proof performance is achieved.

The foregoing has shown and described the basic principles and main features of the present utility model and the advantages of the present utility model. It will be understood by those skilled in the art that the present utility model is not limited to the embodiments described above, and that the above embodiments and descriptions are merely illustrative of the principles of the present utility model, and various changes and modifications may be made without departing from the spirit and scope of the utility model, which is defined in the appended claims. The scope of the utility model is defined by the appended claims and equivalents thereof.

Claims

1. An antitheft screw fastener comprises a bolt assembly (1) and a fastening assembly (2) which is detachably arranged on the top of the bolt assembly (1);

the method is characterized in that: the bolt assembly (1) comprises a screw rod (101) and a screw head (102) which is constructed at the top end of the screw rod (101), an inner hexagonal screw hole (103) is formed in the middle of the top end of the screw head (102), and a meshing groove (104) which is matched with the fastening assembly (2) is formed in the inner two sides of the inner hexagonal screw hole (103);

the fastening assembly (2) comprises an anti-theft cover (201), a bearing seat (202) which is arranged in the inner hexagonal screw hole (103) in a plugging manner is formed in the middle of the inner top end of the anti-theft cover (201), arc plates (203) are respectively formed on two sides of the bottom end of the bearing seat (202), engagement teeth (204) which are engaged and installed in the engagement groove (104) are respectively formed on two sides of the arc plates (203), steel balls (205) which are abutted between the two arc plates (203) are movably installed in the inner bottom of the bearing seat (202), and an elastic assembly which is abutted to the steel balls (205) is fixedly installed on the inner top of the bearing seat (202).

2. An anti-theft screw fastener as claimed in claim 1, wherein: the elastic component comprises an annular seat (206), and the annular seat (206) is sleeved on the top of the steel ball (205).

3. An anti-theft screw fastener as claimed in claim 2, wherein: the top end of the annular seat (206) is fixedly provided with a spring (207), and the spring (207) is fixedly connected with the inner top end of the bearing seat (202).

4. An anti-theft screw fastener as claimed in claim 1, wherein: the anti-theft cover (201) is sleeved on the screw head (102), and a positioning groove (208) is formed in the middle of the top end of the anti-theft cover (201).